I don't know if this video has been already added here but I remember someone requesting for it. It's Ernests' interview to a Russian NTV+ channel.
His interview is from 44:26 to 46:46.
For non-Russian speakers, to sum up:
The interviewer: So, what it feels like to come back after being 0-2 sets down? All 5-set-matches you've played and won, you've come back from being 0-2 down. Does it have something to do with psychic?
Ern: Yeah. Psychic. *smiling* I've finally found THE thing, to play 5-set-matches. *ironically*
The interviewer: And today, how did you motivate yourself?
Ern: When you're 0-2 sets down, you don't care. It can't get any worser and you start doing something.
The interviewer: And who's helping you right now? We can tell that now everything is settled down, you have improved...
Ern: If 'improving' means that I'm ranked 150th, I don't know what dropping is. *smiling* After Paris where we had the interview, I still have the same coach, he's well known. I'm practicing with him in Vienna. He has been working with the [Davis] Cup team and Sarkis Sarkissiann, who I've been playing cards with more than I've been practicing. *smiling* We are spending a lot of time on court, that's what is important for me.
I hope you enjoy it!